ULTECHNOVO 3D Printing Pen 30 Pcs 3D Pen Filament 3D Pen Refills 3D Printer Pen Filament 12 Colors for 3D Printer Pen 1.75mm Random Color 3D Printers

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3d Pen Filament Delivers a smooth printing with a glossy finish, extremely high successful rate.
3d Pen Filament Full mechanical winding and strict manual examination, which guarantee the filaments tidy and easy to be insert.
3d Pen Filament Its consistency of round diameter leads to optimum flow through the nozzle.
3d Pen Filament filament has small shrinkage and warping. It also has the advantage of good toughness.